Food is broken down in the mouth., The bolus is swallowed. Muscles contract and relax to move food down the oesophagus., Food is held and churned in the stomach., Strong acid in the stomach breaks food down., The small intestine absorbs the digestible food., The large intestine absorbs water and vitamins., Waste is expelled. It is called defecation..

CUSP Digestion Lesson 4

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